I buy in my local quilt shop if I can. To me there is great value in being able to feel a fabric and compare it true colors to other fabrics I want to use, whether in the store or from home, and have the instant gratification of getting smart I need for a project when I need it and not days later. I’ve seen too many of my favorite quilt stores close, so I try to support the couple that are still nearby when I can.

ETA: I sew mostly from scraps and my stash though, so I am definitely not single handedly keeping my local shops in business. I have a lot of stash from my early quilting days that either was not purchased In large quantities or with a cohesive plan, or was given to me and isn’t to my taste. When I’ve worked through it I look forward to purchasing more of the beautiful fabrics I see in my LQS. I’m mostly buying boring neutrals/background fabrics right now.

I'm on that "I really should be sewing from my stash" train.
The closest LQS is a 30-45 minute drive, so I don't get out there much, if ever. I primarily use batiks. In the past, I've not found tons of variety in the LQSs I've visited. Batiks are a bit pricey and niche, so I don't blame the owners for limited stock.

Sometimes if you wait a few days after you have items in your cart, you may receive a small discount coupon email encouraging you to complete your order. It's helps to cover shipping.

I still buy online from quilt shops. I buy quite a bit on etsy as well. I only have 1 quilt shop close abd a couple small sewing machine shops so I am limited. I do shop each occassionally. I just find stuff easier by going online especially for pricing.

I'm with ButterflyBlue, shopping mostly at my local quilt shop, only 15 minutes away and "the place where everybody knows my name." Now that Joann's has closed, I buy more notions - machine needles, rotary cutter blades, etc - there. If I buy something and need more, I surf around, beginning with etsy, to find additional yardage. I find etsy sellers send things out a lot faster than the bigger online shops. I sometimes resort to Walmart (in person) or Amazon for batting.

I found consumable sewing notions are much less costly online than the quilt shop. My favorite notions are about the same price at the quilt shop, so I buy them there.

For pixel quilts, I organize the DMC threads on a page in order to match colors to fabric choices. The column on the left is the fabric's name, so I can match them up upon arrival. Julie at batiksplusmore labels each cut with its name! Online is easier. My 2 favorite lines are Fairy Frost by Michael Miller. Hundreds of colors at https://www.shabbyfabrics.com/. And https://www.batiksplusmore.com/ is my go to for batiks. Last order included 4 complementary fat quarters!